Question 535810: My friend got a dress that was 40% off the regular price and the total was $18. How much was the regular price? Answer by april4869(19) (Show Source):
You can put this solution on YOUR website! The original cost can be determined by simply dividing 18.00/40.00=.45, so therefore the original cost was 45.00. If you're not sure, just reverse the process. I bought a dress for 45.00 and got a 40% discount, how much will I pay? 45.00*.40=18.00.
Hope this helps.. also, here's a great site that can help you with problems like this:)
http://www.math.com/students/calculators/source/3percent.htm